Patent GB-731356-A (GB)
Title: Improvements in or relating to cash registers
Inventor: BARBERIS GIOVANNI
IPC: G06C7/10
Filed: 1952-04-15
Abstract: 731,356. Cash registers. RIV-OFFICINE DI VILLAR PEROSA SOC. PER AZIONI. April 15, 1952, No. 9448/52. Class 106 (1). A cash register for delivering a detailed slip on which the cost of each-item and the total of the different items delivered to one purchaser are printed, comprises an item totalizer 154, Fig. 21, and a grand totalizer 109, the frames 75, 74 of the two totalizers being rotatable about a single spindle 76 and being coupled with the transmission during the detailed slip printing cycle at different moments of said cycle. In Fig. 1, register has amount storing keys 2, keys 3 carrying letters A to H representing various classes of articles, repeating key 4, correction key 5, key 6 for discontinuing delivery of the slips, a key 7 permitting delivery of slips, a key 8 preparing a cycle for the delivery of a detailed slip, and a key 9 for causing a total of the amounts to be recorded on a detailed slip and for initiating delivery of slip. The increased total on completion of each item entering cycle is visible through a slot 13 and the number of stored addenda per slip is visible through a slot 15. The number of stored addenda per slip is shown through a slot 14. The slips 8 are issued through an opening 16. A key 11 enables the machine to be set to positions corresponding to (1) locked position, (2) printing of the amounts on the grand totalizer on a card introduced through a suitable opening, (3) general operating position, (4) zeroizing of the grand totalizer. A crank 12 allows the register to be hand operated but if electrically driven the machine is started by a push-button 10. The grand totalizer can be disconnected when it is desired to use the register as an adding machine. Setting means.-The keys in each column of item entering keys 2, Fig. 6, are spring-biased outwardly. On pressing the key inwardly, the key displaces a spring-biased locking member 188, Fig. 7, in such a manner that any previously depressed key is released and the depressed key is held in its depressed position. The main driving-shaft 19, Fig. 16, turns a shaft 23 through gears 20, 21, 22. On the shaft 23 are cams 24, 25, Fig. 5. When the driving crank 12, Fig. 1, performs. two, turns the cams 24, 25 cause a lever 27 pivoted on a shaft 28 to perform an oscillation. This oscillation is transmitted by a lug 29 on the lever 27 to a lever 33, Fig. 2, having a tooth sector 34 meshing with a sector 35 keyed to a spindle 38 which is the shaft of the transmission or the main machine shaft. Keyed to the spindle 38 are levers 39, Fig. 6, there being one 'such lever for each vertical column of keys 2. On the hub of each lever 39 is idly mounted a lever 41 arranged to have a slight oscillation with respect to the levers 3.- At the end of each lever 39 is a pivoted catch pawl 45 having a feeler 47 urged clockwise on a pivot 46 by a spring 48. When the driving crank 12 performs two turns, the above-described transmission gear is such that each 'lever 39 and its pawl 49 are moved through 60 degrees from the upper position shown in the full lines in Fig. 6 to the lower position shown in dotted lines followed by an anticlockwise rotation back to their initial position. During the downward movement of each arm 39 the corresponding feeler 47 abut the rods 2a of the inwardly pressed key 2 in the corresponding column but passes this key by virtue of the spring 48. On the return movement of the arm 39, however, the rod 2a causes the feeler 47 to move in a manner causing the catch pawl 49 to engage with teeth 50 on an associated wheel 51 idle on the spindle 38. The pawl 49 is held in its engaged position during the full backward movement, for a projection 52, carried by the pawl 49, is engaged on oscillation of the pawl, over a raised portion 41a of lever 41 which has, on oscillation of the pawl, been angularly displaced under the action of a spring 53 through a width determined by a pin- and slot arrangement 42. The projection 52 is urged against the lever 41 by a spring 54. The resulting movement of each wheel 51 is transmitted (1) to associated pinions 56 and thence to a set of operators indicating drums 58, Fig. 20 (Fig. 20 is a section developed on line XX-XX of Fig. 6) numbered from 0 to 9 and visible through the slot 13, Fig. 1, and also (2) see below, to wheels 68, Fig. 21, that mesh automatically in correct sequence with either of two toothed wheels 70 and 71 idle on spindles 72 and 73 carried by two frames 74 and 75 swinging about a common pivot 76. The spindle 72 is the driving spindle for the grand totalizer 109 while the spindle 73 is the driving spindle for the item totalizer 154. Total, printing.-Coaxial with the set of drums 58 is a set of printing discs 60, the drums 58 and the discs 60 being coupled by concentrical tubes 61. For each of the numbered front drums 58 there is a correspondingly numbered rear drum 66, Figs. 6 and 20, visible through a slot on the customer side of the machine, the drums 66 being driven from the wheels 51 through pinions 63, Fig. 21. Sequence of steps in entering successive amounts to grand totalizer and item totalizer.- When the keys 2 have been pressed to enter the first addendum, the machine is started by cranking the handle 12, or if electrically driven, by pushing the start button 10. The levers 39 on the transmission shaft 38, Fig. 6, then perform a downward stroke and at the same time additional cams and gearing cause the grand totalizer on shaft 72 to be coupled to the transmission through the toothed wheels 68. The levers 39 then perform their upward stroke and the feelers 47 catch against 'the depressed key 2a in a manner causing the lugs 49 to engage with and rotate the wheels 51. The resulting rotation of the wheels 51 is transmitted to the grand totalizer through the toothed wheels 68 to transfer the amount entered to the grand totalizer, whereupon the grand totalizer is automatically disconnected from and the item totalizer connected to, the wheels 68. In the next amount storing cycle, the levers 39 again perform a downward stroke and the pawls 49 thereon are brought out of engagement with the wheels 51 on abutting the newly-depressed rods 2a, the wheels 51 returning to their zero position and in doing so transmitting their values to the now coupled item totalizer 73. The item totalizer is then disconnected and the grand totalizer connected. The levers 39 then perform their upward movement and the feelers 47 catch against the rods 2a of the keys 2 that have been depressed to represent the second amount to be entered in the register and in doing so this amount is added to the grand totalizer in the manner described above where after the grand totalizer is again automatically disconnected and the item totalizer connected to receive the item entered as the wheels 51 are zeroized. These operations are repeated on entering successive amounts. On entering the final amount.-When the storing of the amounts is completed the " total '' key 9 is lowered to prevent further coupling of the grand totalizer and to initiate two full cycles of the machine. In the first cycle, the levers 39 again move downwardly cancelling the last entered addenda in a manner transmitting it to the item totalizer, after which the levers 39 move upwardly without transmitting any further values ot either totalizer. In the second cycle'the item totalizer is restored to zero, by transferring the values thereon to the front reading drum 66 and the printing drums 60. Thus the sale slip shows prices of individual:sales and cost of total sale. Printing by grand totalizer.-The grand totalizer pinions 70, Fig. 22, have hubs 77 bearing numerals.for printing the grand total of the machine on a card C, Fig. 5, which is introduced at the rear of the casing and is pressed against the, grand totalizer by a hammer 78. The discs of the item totalizer are not provided with numerals for printing. Grand totalizer, zeroizing and transfer.-The pinions 70, Fig. 22, of the grand. totalizer on the shaft 72 each have a hub or disc 77 carrying projections 79 and 80 of which the former serves for preparing transfer and the latter serves for restoring to zero. Zeroizing.-A cotter 81 slides in a cut in the spindle 72, the cotter 81 having projections 82 normally positioned between the pinions 70, as shown in Fig. 22, by a spring 83. The cotter 81 can be axially displaced';by rotating a bush 84 mounted on the side wall of the casing, the bush having a gradient 85, Fig. 28, against which a pin 81 on the shaft 72 is slidably engaged. This rotation takes place only when the machine is prepared for zeroizing by the key 11. This axial displacement of the cotter 81 causes the cotter projections 82, Fig. 22, to move to the right and abut the projections 80 on the disc 77 thereby carrying the discs 77 in rotation with the shaft 72 to return them to zero. Transfer.-A rotatable spindle 86, Figs. 21, 22, 24 and 25 slidably carries in a groove therein a cotter 87 formed with projections 88.' The spindle 86, Fig. 24, carries a sleeve 89 for each disc 77 on the spindle 72, the sleeves 89 having a cut 90 by which they may slide on the projections 88. A disc 91 is loosely mounted on each sleeve 89, the discs 91 being prevented from rotating by a cut therein being engaged by a tooth 92 of a stationary support 93. Each disc 91 has an inclined tooth 94 acted on by the projection 79 on the associated disc 77 when the latter rotates beyond the position 9. This engagement moves the sleeve 89 and tooth 95 axially to the position shown in Fig. 25 in which the said tooth meshes with the wheel 70. The spindles 86 performs a full turn on each cycle of the machine and if the tooth 95 are displaced as shown in Fig. 25 they rotate by one step the gear 70 and disc 77 in conformity with the transfer. Each sleeve 89 is returned to its initial position by effect of its rotation through the engagement of an inclined tooth 107 with the projection 108 on the stationary memb